MichaelJY1991的专栏

场景：使用spring-security时，请求/j_spring_security_logout报http404原因：spring-security4.x版本需要自己手动在logout标签加上logout-url=“/j_spring_security_logout”spring-security3.x版本不需要手动加，spring-security默认处理解决：

场景：http://localhost:8080/j_spring_security_check使用spring-security框架，自定义login页面时，发现上面的请求404原因：spring-security的版本问题，spring-security4.x版本，若需要自定义login页面时，需要自定login-processing-url=“/j_spring_secu

场景：使用spring-security4.x版本时InMemoryDaoImpl不存在原因：spring-security4.x版本中使用InMemoryUserDetailsManager替换了InMemoryDaoImpl参考：http://docs.spring.io/spring-security/site/migrate/current/3-to-4/html5

场景：配置jasig cas和spring security的，注销功能。tomcat报如下错误The error indicates the the CAS server is trying to post the single sign out request to itself, localhost, rather than to the service.原因：注

异常栈：Caused by: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springfr

异常栈：java.lang.IllegalArgumentException: Failed to evaluate expression 'ROLE_USER' org.springframework.security.access.expression.ExpressionUtils.evaluateAsBoolean(ExpressionUtils.java:15) org.spri

异常栈：Offending resource: class path resource [spring/applicationContext-security.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.security.web.FilterChainProxy    a

场景：<beans:beans xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema

spring-framework 配置文件读取系统变量使用过spring-boot的同学都知道，boot内置了很多特性，比如：配置文件随机值；其实boot是建立在framework之上的，底层用的都一样只是boot进行更多封装配置文件处理类PropertyPlaceholderConfigurerspring读取配置的内部实现类，简单使用可看 https://docs.